11381049 has 6 divisors (see below), whose sum is σ = 16439306. Its totient is φ = 7587360.

The previous prime is 11381039. The next prime is 11381059. The reversal of 11381049 is 94018311.

11381049 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (11381039) and next prime (11381059).

It can be written as a sum of positive squares in only one way, i.e., 10791225 + 589824 = 3285^2 + 768^2 .

It is not a de Polignac number, because 11381049 - 2⁴ = 11381033 is a prime.

It is a super-3 number, since 3×11381049³ (a number of 22 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11381039) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 632272 + ... + 632289.

Almost surely, 2^11381049 is an apocalyptic number.

It is an amenable number.

11381049 is a deficient number, since it is larger than the sum of its proper divisors (5058257).

11381049 is a wasteful number, since it uses less digits than its factorization.

11381049 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1264567 (or 1264564 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 27.

The square root of 11381049 is about 3373.5810350427. The cubic root of 11381049 is about 224.9369304708.

It can be divided in two parts, 1138 and 1049, that added together give a 7-th power (2187 = 3⁷).

The spelling of 11381049 in words is "eleven million, three hundred eighty-one thousand, forty-nine".